{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "import tkinter\n",
    "import tkinter.messagebox\n",
    "import os\n",
    "import os.path\n",
    "\n",
    "# 获取临时目录路径\n",
    "path = os.getenv('temp')\n",
    "filename = os.path.join(path, 'info.txt')\n",
    "\n",
    "# 创建应用程序窗口\n",
    "root = tkinter.Tk()\n",
    "\n",
    "# 定义窗口大小\n",
    "root['height'] = 140\n",
    "root['width'] = 200\n",
    "\n",
    "# 在窗口上创建标签组件\n",
    "labelName = tkinter.Label(root,\n",
    "                           text='UserName:',\n",
    "                           justify=tkinter.RIGHT,\n",
    "                           anchor='e',\n",
    "                           width=80)\n",
    "# 把组件放置到窗口上指定区域\n",
    "labelName.place(x=10, y=5, width=80, height=20)\n",
    "\n",
    "# 创建字符串变量和文本边框组件，同时设置关联的变量\n",
    "# 可以通过关联变量来读取或修改文本框内的文本\n",
    "varName = tkinter.StringVar(root, value='')\n",
    "entryName = tkinter.Entry(root,\n",
    "                          width=80,\n",
    "                          textvariable=varName)\n",
    "entryName.place(x=100, y=5, width=80, height=20)\n",
    "\n",
    "labelPwd = tkinter.Label(root,\n",
    "                           text='UserPwd:',\n",
    "                           justify=tkinter.RIGHT,\n",
    "                           anchor='e',\n",
    "                           width=80)\n",
    "labelPwd.place(x=10, y=30, width=80, height=20)\n",
    "\n",
    "# 创建密码文本框\n",
    "varPwd = tkinter.StringVar(root, value='')\n",
    "entryPwd = tkinter.Entry(root,\n",
    "                          show='*',   # 不管输入什么，都显示星号\n",
    "                          width=80,\n",
    "                          textvariable=varPwd)\n",
    "entryPwd.place(x=100, y=30, width=80, height=20)\n",
    "\n",
    "# 尝试自动填写用户名和密码\n",
    "try:\n",
    "    with open(filename) as fp:\n",
    "        n, p = fp.read().strip().split(',')\n",
    "        varName.set(n)\n",
    "        varPwd.set(p)\n",
    "except:\n",
    "    pass\n",
    "\n",
    "# 记住我，复选框\n",
    "rememberMe = tkinter.IntVar(root, value=1)\n",
    "checkRememberMe = tkinter.Checkbutton(root,\n",
    "                                     text='Remember Me?',\n",
    "                                     variable=rememberMe,  # 选中时，rememberMe的值为1，否则为0\n",
    "                                     onvalue=1,\n",
    "                                     offvalue=0)\n",
    "checkRememberMe.place(x=30, y=70, width=120, height=20)\n",
    "\n",
    "# 登录按钮事件处理函数\n",
    "def login():\n",
    "    name = entryName.get()\n",
    "    pwd = entryPwd.get()\n",
    "    if name == 'admin' and pwd == '123456':\n",
    "        tkinter.messagebox.showinfo(title='恭喜',\n",
    "                                    message='登录成功')\n",
    "        if rememberMe.get() == 1:\n",
    "            with open(filename, 'w') as fp:\n",
    "                fp.write(','.join((name, pwd)))\n",
    "        else:\n",
    "            try:\n",
    "                os.remove(filename)\n",
    "            except:\n",
    "                pass\n",
    "    else:\n",
    "        tkinter.messagebox.showerror('警告',\n",
    "                                    message='用户名或密码错误')\n",
    "\n",
    "buttonOk = tkinter.Button(root,\n",
    "                          text='Login',  # 设置按钮上显示的文本\n",
    "                          command=login)  # 设置按钮的单击事件处理函数\n",
    "buttonOk.place(x=30, y=100, width=80, height=20)\n",
    "\n",
    "# 取消按钮事件处理函数\n",
    "def cancel():\n",
    "    # 清空用户输入的用户名和密码\n",
    "    varName.set('')\n",
    "    varPwd.set('')\n",
    "\n",
    "buttonCancel = tkinter.Button(root,\n",
    "                             text='Cancel',\n",
    "                             command=cancel)\n",
    "buttonCancel.place(x=90, y=100, width=50, height=20)\n",
    "\n",
    "root.mainloop()\n"
   ]
  }
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